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/*
* Copyright (c) 2007 Henri Sivonen
* Copyright (c) 2008 Mozilla Foundation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
package nu.validator.htmlparser.test;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.Charset;
import nu.validator.htmlparser.common.Heuristics;
import nu.validator.htmlparser.io.Encoding;
import nu.validator.htmlparser.io.HtmlInputStreamReader;
import org.xml.sax.SAXException;
public class EncodingTester {
static int exitStatus = 0;
protected static int SNIFFING_LIMIT = 16384;
private final InputStream aggregateStream;
private final StringBuilder builder = new StringBuilder();
/**
* @param aggregateStream
*/
public EncodingTester(InputStream aggregateStream) {
this.aggregateStream = aggregateStream;
}
void runTests() throws IOException, SAXException {
while (runTest()) {
// spin
}
}
@SuppressWarnings("resource")
private boolean runTest() throws IOException, SAXException {
if (skipLabel()) {
return false;
}
UntilHashInputStream stream = new UntilHashInputStream(aggregateStream);
HtmlInputStreamReader reader = new HtmlInputStreamReader(stream, null,
null, null, Heuristics.NONE, SNIFFING_LIMIT);
Charset charset = reader.getCharset();
stream.close();
if (skipLabel()) {
exitStatus = 1;
System.err.println("Premature end of test data.");
return false;
}
builder.setLength(0);
loop: for (;;) {
int b = aggregateStream.read();
switch (b) {
case '\n':
break loop;
case -1:
exitStatus = 1;
System.err.println("Premature end of test data.");
return false;
default:
builder.append(((char) b));
}
}
String sniffed = charset.name();
String expected = Encoding.forName(builder.toString()).newDecoder().charset().name();
if (expected.equalsIgnoreCase(sniffed)) {
// System.err.println(stream);
} else {
exitStatus = 1;
System.err.println("Failure. Expected: " + expected + " got "
+ sniffed + ".");
System.err.println(stream);
}
return true;
}
private boolean skipLabel() throws IOException {
int b = aggregateStream.read();
if (b == -1) {
return true;
}
for (;;) {
b = aggregateStream.read();
if (b == -1) {
return true;
} else if (b == 0x0A) {
return false;
}
}
}
/**
* @param args
* @throws SAXException
* @throws IOException
*/
public static void main(String[] args) throws IOException, SAXException {
for (int i = 0; i < args.length; i++) {
EncodingTester tester = new EncodingTester(new FileInputStream(
args[i]));
tester.runTests();
}
System.exit(exitStatus);
}
}
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